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답안 #1077536

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1077536 2024-08-27T07:55:18 Z Faisal_Saqib 디지털 회로 (IOI22_circuit) C++17
0 / 100
 639 ms 10704 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
const ll NP=2e5+100,mod=1000002022;
ll n,m,p[NP],a[NP];
vector<ll> ma[NP];
ll dp[NP][2],lazy[NP],dp1[NP][2],lc[NP],rc[NP];
void compute(int x=0,bool continue_=1)
{
	dp[x][0]=dp[x][1]=0;
	dp1[x][0]=dp1[x][1]=0;
	if(n<=x){
		dp[x][a[x-n]]=1;
		dp1[x][1-a[x-n]]=1;
		return;
	}
	int sz=ma[x].size();
	vector<int> tmp(sz+1);
	// DP 1
	tmp[0]=1;
	for(auto y:ma[x])
	{
		if(continue_)
			compute(y);
		for(int j=sz;j>=0;j--)
		{
			if(j==0)
			{
				tmp[j]=(tmp[j]*dp[y][0])%mod;
			}
			else
			{
				tmp[j]=(tmp[j]*dp[y][0])%mod;
				tmp[j]=(tmp[j] + ((tmp[j-1]*dp[y][1])%mod))%mod;
			}
		}
	}
	int sm=0;
	for(int j=sz;j>=1;j--)
	{
		sm = ( sm + tmp[j] ) % mod;
		dp[x][1] = ( dp[x][1] + sm ) % mod;
	}
	sm=tmp[0];
	for(int j=1;j<=sz;j++)
	{
		dp[x][0] = ( dp[x][0] + sm ) % mod;
		sm = ( sm + tmp[j] ) % mod;
	}
 
 
	// Dp 1
	for(int j=0;j<=sz;j++)tmp[j]=0;
	tmp[0]=1;
	for(auto y:ma[x])
	{
		for(int j=sz;j>=0;j--)
		{
			if(j==0)
			{
				tmp[j]=(tmp[j]*dp1[y][0])%mod;
			}
			else
			{
				tmp[j]=(tmp[j]*dp1[y][0])%mod;
				tmp[j]=(tmp[j] + ((tmp[j-1]*dp1[y][1])%mod))%mod;
			}
		}
	}
	sm=0;
	for(int j=sz;j>=1;j--)
	{
		sm = ( sm + tmp[j] ) % mod;
		dp1[x][1] = ( dp1[x][1] + sm ) % mod;
	}
	sm=tmp[0];
	for(int j=1;j<=sz;j++)
	{
		dp1[x][0] = ( dp1[x][0] + sm ) % mod;
		sm = ( sm + tmp[j] ) % mod;
	}
}
void prepro(int x=0){
	if(n<=x)
	{
		lc[x]=rc[x]=-1;
		return;
	}
	lc[x]=ma[x][0];
	rc[x]=ma[x][1];
	prepro(lc[x]);
	prepro(rc[x]);
}
void push(int v)
{
	if(!lazy[v])return;
	lazy[lc[v]]^=lazy[v];
	lazy[rc[v]]^=lazy[v];
	swap(dp[v][0],dp1[v][0]);
	swap(dp[v][1],dp1[v][1]);
	lazy[v]=0;
}
void update(int v,int l,int r,int ql,int qr)
{
	push(v);
	if(qr<l or r<ql) // nothing changes here
		return;
	if(ql<=l and r<=qr) // whole subtree to be updated
	{
		lazy[v]^=1;
		return;
	}
	push(v);
	int mid=(l+r)/2;
	update(lc[v],l,mid,ql,qr);
	update(rc[v],mid+1,r,ql,qr);
	compute(v,0);
}
void init(int N, int M, std::vector<int> P, std::vector<int> A)
{
	n=N,m=M;
	for(ll i=0;i<n+m;i++)
	{
		p[i]=P[i];
		if(p[i]!=-1)ma[p[i]].push_back(i);
	}
	for(ll j=0;j<m;j++)a[j]=A[j];
	prepro();
	compute();
}
 
int count_ways(int L, int R)
{
	for(ll i=L-n;i<=R-n;i++)a[i]=(a[i]?0:1);
	update(0,0,m-1,L-n,R-n);
	push(1);
	return (int)dp[0][1];
}

Subtask #1
0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 4948 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 4952 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 4948 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 639 ms 10704 KB 1st lines differ - on the 1st token, expected: '431985922', found: '394586018'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 639 ms 10704 KB 1st lines differ - on the 1st token, expected: '431985922', found: '394586018'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 4952 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 4948 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 4948 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -